# Spindle Warmup with new Ex controller

**URL:** <https://forum.avidcnc.com/t/spindle-warmup-with-new-ex-controller/6626>\
**Category:** General Chat\
**Created:** [September 30, 2026, 2:35am UTC](https://forum.avidcnc.com/t/spindle-warmup-with-new-ex-controller/6626 "2026-09-30T02:35:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![docrawfo](https://avatars.discourse-cdn.com/v4/letter/d/8e7dd6/32.png) [@docrawfo](https://forum.avidcnc.com/u/docrawfo)\
**Post date:** [September 30, 2026, 2:35am UTC](https://forum.avidcnc.com/t/spindle-warmup-with-new-ex-controller/6626/1 "2026-09-30T02:35:11Z")

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I am towards the end of an ex controls self conversion from Mach4. Is the machine required to be homed before I can run the spindle warm up? I can jumper across relay 5 (configured for spindle fwd) and the spindle runs. I cannot get relay 5 to close with any of the spindle buttons including the pendent? I cannot home yet as I still need to set up the clear path servos for hard stop squaring.